• Journal of the Korea Convergence Society
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• v.8 no.12
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• pp.407-416
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• 2017

The Purpose of this study was to identify the relationship among incivility, coping, burnout and career identity to clinical practice. The subjects were 199 nursing students from two college in Gwang-ju. A self-report questionnaire was used to collect data on incivility, coping, career identity and burnout. The data was analyzed using descriptive statistics, Pearson correlation coefficient, independent t-test, ANOVA, and Multiple regression by SPSS ver. 23.0. 87.9% of subjects experiences incivility in clinical practice. Incivility was positively correlated with burnout(r=.27, p<.001). but Incivility was nagatively correlated with career identity(r=-.24, p=.001). Career identity was nagatively correlated with burnout(r=-.62, p<.001). The predictors on burnout were incivility, coping and career identity. These variables have total explanatory power of 48.6% on burnout.

• Composites Research
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• v.28 no.3
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• pp.75-80
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• 2015

Poly(vinylidene fluoride-trifluoroethylene; P(VDF-TrFE)) is one of the most promising electroactive polymers with numerous application potentials in many fields of industry. Because of its good electro-mechanical properties P(VDF-TrFE) has been used for a number of sensors and actuators and also can be used for monitoring composite structure behaviors as a sensor. Three different ways (Electrical poling, annealing-cooling, and pressing) to enhance ${\beta}$-phase of P(VDF-TrFE) film were carried out. A microscopic analysis was conducted using X-ray diffraction to investigate the effect of such treatments on piezoelectric properties of P(VDF-TrFE) film. From the results, poling, annealing-cooling, and pressing were all effective to enhance ${\beta}$ crystallinity of P(VDF-TrFE) film and the maximum increase rate was 62.80% from 45.29% of the control group.

• Journal of the East Asian Society of Dietary Life
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• v.14 no.2
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• pp.113-122
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• 2004

This study was conducted to examine the correlation among growth development, bone mineral density, and nutrient intakes in preschool children. A total of 62 preschool children measured the anthropometric characteristics and the bone mineral density of carpus using DEXA. The questionnaires categorized to determine health status, life style, dietary behaviors, and dietary intakes were filled out by children's mothers. The average ages of the study subjects were 62.4 months in boys and 62.1 months in girls. The birth height and weight of the subjects were 50.9 cm and 3.4 kg in boys and 50.3 cm and 3.3 kg in girls, respectively. The average height, weight, % body fat, and obesity index were 111.7 cm, 19.6 kg, 15.0%, -2.1% in boys and 109.4 cm, 18.7 kg, 17.5%, 0.2% in girls, respectively. The bone mineral density in carpus was 0.25 g/cm$^2$ in boys and 0.24 g/cm$^2$. In girls. Proportions of children having regular meals were 69.0%, 94.7%, and 69.0% for breakfast, lunch, and dinner, respectively. The major reasons for irregular meal were poor appetite and lack of time for breakfast and snacks for dinner. Most of the children(52.6%) had breakfast with the whole family together, and all the children had lunch and dinner with a part of the family. Most of the children answered they had snack more than once a day, and 64.3% had an unbalanced diet. The intakes of energy, calcium, iron, zinc, vitamin A, vitamin B$_1$, niacin, and vitamin C did not meet the Korean RDAs. Average bone mineral density in carpus was positively correlated to the body weight, the total body water, the lean body mass, and the obesity index, respectively(p＜0.01, p＜0.01, p＜0.01 and p＜0.01). The body weight, the total body water, and the lean body mass showed the significant negative correlations with the animal iron intake(p＜0.05, p＜0.01 and p＜0.01). The bone mineral density in the distal carpus was negatively correlated to the animal protein intake and the animal iron intake(p＜0.05 and p＜0.05). And the bone mineral density in the ultradis carpus and the average bone mineral density in the carpus were positively correlated to the plant calcium intake(p＜0.05 and p＜0.05). Therefore, more systematic studies to investigate the roles of protein, iron, and calcium in growth development of preschool children were required.

• Journal of dental hygiene science
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• v.13 no.2
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• pp.213-221
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• 2013

The mouth rinsing solution currently on the market is used for oral hygiene and reduction of halitosis, and alkaline ionized water is used for drinking purposes. The aim of this germiculture and observation through a microscope is to investigate the effect they have on the oral bacteria, and the results are as follows. 1. The change in the number of cultivated bacteria before and after the use of gargle was most dramatic for Hexamedin. It showed the highest rate of decrease in bacteria by 71.29%, followed by Listerine with 62.25%, Caregargle with 42.26%, Garglin with 33.52%, saline solution with 21.62%, alkaline ionized water with 16.08% and distilled water with 7.67%. 2. After careful analysis of statistics, Hexamedin was found to result in a significant decrease in the number of bacteria after gargling (p<0.05). 3. From observing through an light microscope after gram staining, it was evident that both a number of cocci and a few of filamentous were present before the use of gargle, whereas mostly cocci was present after the use of gargle. 4. The difference in the pH of oral rinses and alkaline ionized water had no significant influence on the number of oral bacteria. In conclusion, Hexamedin and Listerine, with the rate of decrease of bacteria of co71.29% and 62.25% respectively, have proven to be highly effective when applied before dental treatment. Other oral rinses and alkaline ionized water are relatively less efficient in decreasing the number of oral bacteria. Also, the decrease of bacteria is more affected by the antibacterial component of oral rinses than by the change in pH.

• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.12
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• pp.1830-1837
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• 2016

In this research, the perception and foodservice quality satisfaction of free school meals were surveyed by elementary school students in Busan. The survey was conducted on 600 elementary students of 4~6th graders. The total score for perception of free school meals was 4.47/5.00 points. Sixth graders showed a statistically significant higher score than fourth graders (P<0.01). The overall score for satisfaction of free school meals was 4.55 points. In terms of grade, sixth graders showed a statistically significant higher score than fifth graders (P<0.05). For satisfaction of foodservice quality, average score was 4.55 points. In terms of lower-level categories, areas of food, menu, sanitation, service, and environment yielded 4.47, 4.62, 4.62, 4.53, and 4.48 points, respectively. In terms of differences by grade, sixth graders showed a statistically significant higher average score for satisfaction of foodservice quality than fourth and fifth graders (P<0.01). The overall score for perception of free school meals and overall satisfaction of foodservice quality showed a statistically significant positive correlation (P<0.01, r=0.781). In each category of foodservice quality, areas of food (r=0.733), menu (r=0.677), sanitation (r=0.636), service (r=0.673), and environment (r=0.588) showed statistically significant positive correlations (P<0.01).

• Proceedings of the Earthquake Engineering Society of Korea Conference
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• 2005.03a
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• pp.62-67
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• 2005

A new picking algorithm has been developed on real-time basis for finding the onset of P wave as well as discriminating the micro seismic signal from artificial noise. Unlike the previous methods which have used the STA/LTA ratio for discriminating the P arrivals, we have adopted the slope discrimination methods for identifying the P onset. As result, this algorithm has been turned out to be efficient in both accuracy and computation in on-line system.

• 한국해양학회지
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• v.15 no.1
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• pp.62-65
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• 1980

1976년 7월부터 1979년 5월까지 3년간 진해만의 표층에서 격월로 식물성플랑크톤 군집 변화에 영향을 미치는 환경요인(수온, 염분도, pH, 투명도, 용존산소, Chlorophyll-a,c, NO$_{2}$-N 및 PO$_{4}$-P)에 대하여 조사했다. 9가지 환경요인이 식물성플랑크톤 군집 변화에 37.20% 영향을 미치고 있었으며 각각의 환경요인으로는 PO$_{4}$-P, 투명도, Chlorophyll-a, 수온, 염분도 등이 중요한 요인이었으며 용존산소, NO$_{2}$-N, pH 및 Chlorophyll-c 는 크게 영향을 미치지 않고 있었다.

• Journal of Animal Science and Technology
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• v.62 no.4
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• pp.577-586
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• 2020

This study was to investigate the effect of salt alone or in combination with phosphate on physicochemical and textural properties, and chemical interactions of low-fat model sausages. pH, color, expressible moisture (EM), cooking loss (CL), proximate analysis, textural profile analysis and low-vacuum scanning electron microscopy were performed. As salt content increased, color tended to decrease, as did EM and CL parameters, indicating that the ability to retain moisture was improved with increased salt levels (p < 0.05). In addition, textural hardness, gumminess and chewiness all increased with increasing salt (p < 0.05). Sausages with 0.3% salt showed the lowest cohesiveness compared to those with salt levels higher than 0.3% (p < 0.05). Addition of sodium tripolyphosphate (STPP) increased pH of sausages. Increasing salt and STPP did not affect lightness (p > 0.05), but did increase redness and yellowness (p < 0.05). The moisture content was higher when the salt and STPP contents were increased (p < 0.05), but no differences in the fat and protein contents (%) were observed (p > 0.05). EM and CL tended to decrease with increasing salt and STPP. In textural properties, the combination of 1.8% salt and 0.3% STPP was the best among other treatment (p < 0.05). Surface microstructure showed a flat and dense structure with increasing salt and STPP. Since the addition of salt and phosphate improved the functionality, textural and physicochemical properties of meat products in this study, meat products will need to be developed in line with consumer's preference.

• Korean Journal of Occupational Health Nursing
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• v.11 no.1
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• pp.52-62
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• 2002

Purpose: This study was to analyze changes of motivation and health-promoting lifestyle in 3 months after medical examination, and to identify the influencing factors on the change of health-promoting lifestyle. Methods: The subjects of this study were 81 adults who took medical examination at a general hospital health clinic in Cheonan city. The instruments used in this study were the motivation scale and modified HPLP. For data collection, the first survey was conducted from March 16 to April 19, 2001, and the second survey was carried out by mail three months after the medical examination from June 16 to July 19, 2001. Results: 1. The age of the subjects ranged from 26 to 66 years, 71.6% were male, and the major group was office workers(43.2%). 2. The average score of motivation scale was significantly improved in three months to 520.7(SD=82.7). All sub-scales of motivation scale, self-efficacy(t=-4.204, p=.000), perceived benefits(t=-4.263, p=.000), perceived barriers (t=4.305, p=.000), and emotional salience (t=-6.169, p=.000) showed significant improvements in 3 months. 3. The average score of health-promoting lifestyle was significantly increased to 62.5 (SD=9.8) (t=-5.111, p=.000) after 3 months. Health responsibility(t=-6.098, p=.000), eating habit(t=-3.625, p=.001), exercise(t=-2.557, p=.012), and smoking habit(t=-2.157, p=.034) showed significant improvement. But stress management was not changed at the significant level in 3 months(t=-1.832, p=.071). 4. As the result of multiple regression analysis, it was found that perceived barriers, self-efficacy and monthly mean income had a significant influence on health-promoting lifestyle in 3 months after the medical examination. These variables explained 42.4% of variance in health-promoting lifestyle in 3 months after the medical examination. Conclusion: Periodic medical examination and guidance for healthy lifestyle was effective to change the motivation and to improve health promoting lifestyle.

• Journal of Digital Convergence
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• v.14 no.8
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• pp.515-525
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• 2016

This study examined how walking moderates the influence of depression on quality of life in elderly. Data of the study were analysed using the sixth Korean National Health and Nutrition Examination Survey (KNHANES V-2, 2014). The subjects were elderly aged 65 years or more and the number of the sample was 1,263. Using hierarchial regression analysis, walking as a moderator of the depression and quality of life relationship was examined. Quality of life for elderly showed significant differences according to sex(t=8.26, p<.001), age(t=5.19, p<.001), number of chronic disease(F=37.88, p<.001), depression(t=9.62, p<.001) and walking per week (t=47.36, p<.001). Walking moderated the relationship between depression and quality of life in elderly. Based on these findings, the enhancement of walking in depressed elderly is recommended to promote the quality of life.